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Discussion Starter · #1 ·
I'm a newbie and with my white GTR, I am suffering from the exhaust sooty deposits on my rear. In reading the relevant posts on this subject, I was lead to believe that a higher octane gasoline may reduce this soot issue.
I'm anxious to see if a higher octane fuel will help but can't find a gas station in the Chicagoland area that sells anything higher than 92 .
So should I use an octane booster fuel treatment?
Any gas stations known to you would be appreciated as well as your opinion.
 
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